Whoever saw an angel barefooted?

The way to be happy is to make others so.

Logic is not satisfied with assertion. It cares nothing for the opinions of the great; nothing for the prejudices of the many, and least of all for the superstitions of the dead.

No one, in the world's whole history, ever attempted to substantiate a truth by a miracle. Truth scorns the assistance of miracle. Nothing but falsehood ever attested itself by signs and wonders. No miracle ever was performed, and no sane man ever thought he had performed one, and until one is performed, there can be no evidence of the existence of any power superior to, and independent of nature.

The more false we destroy, the more room there will be for the true.

The most important thing in this world is liberty. More important than food or clothes - more important than gold or houses or lands - more important than art or science - more important than all religions, is the liberty of man.

If there is a God, there should be no slaves.